Device for winding symmetrical coils



Feb. 2 1926.

H. THOMPSON DEVICE FOR WINDING SYMMETRICAL COILS Filed April 24, 1925 I gmntez JHTHOM PsoN alto-mug 5 Patented Feb. 2, 1926.

UNITED STATES PATENT ()FFlCE.

DEVICE FOR VTINDING SYMMETRICAL COILS.

Application filed April. 24, 1925.

To all whom it may concern:

Be it known that James HENRY TrronrsoN, a citizen of the United States, residing at Hollidays Cove, in the county of Hancock and State of West Virginia, has invented certain new and useful lmproven'ients in Devices for lVinding Symn'ietrical Coils, of which the following is a specification.

This invention relates to a coil winding device and it has for its object to provide a simple and inexpensive arrangement of parts by means of which the Lorenz basket weave and the diamond weave coils, commonly employed in radio construction, may be wound to truly syi'nmetrical form and in a number of varying diameters.

Further objects and advantages of the in vention will be more particularly set forth in the detailed description which follows.

In the accompanying drawing:

Fig. 1 is a base board hereinafter described.

F 2 is aside elevation upon an enlarged scale of one end oft-said base board with one of the inside squaring discs in place.

Fig. 3 is a plan View upon a somewhat enlarged scale of one of the inside squaring discs employed in the construction of basket weave cells.

Fig. 4 is a plan view of one of the inside squaring discs employed in the construction of diamond weave coils.

Fig. 5 is a plan view of one of the outside discs employed inthe construction of basket weave coils.

Fig. 6 .is a view of a handle having one outside squaring disc of each type attached thereto, and,

Fig. 7 is a side View of a handle having an inside squaring disc attached thereto.

Like numerals designate coresponding parts in all of the figures of the drawing.

Referring to the drawing, 5 designates a base board which may be formed of any suitable material and may be formed in any suitable shape or size. In the particular embodiment of the invention which I have chosen for purposes of illustration the base 5 is provided, adjacent its opposite ends, with openings 6, 6%,tl113oua which 1118 dle or stem 7 of'the inside squaring disc (see Fig. 7) may be passed.

The openings 6, 6" are surrounded by plurality of circular A and B rows of open- Serial No. 25,635.

ings, the several rows being concentrically irranged with respect to the openings (3, G and said openings being" adapted to receive pins or pegs 8.

lVhen winding Lorenz basket weave coils, fourteen of the pegs or pins are used and the holes in the circular rows, are consequently, fourteen in number. If a large diameter coil is to be made, the pegs are placed in the outermost row and if a small diameter coil is to be made, the pegs are placed in the innermost row. If a coil of intermediate diameter is to be made, the pegs are placed in the intermediate row. When a diamond w ave coil is to be wound,

fifteen of the pegs or pins are employed and the openings in the base 5, which receive these pegs or pins are disposed in a circular row as hereinbefore described, each circular row comprising fifteen openings.

Since the openings in the base correspond in location and dltlll'lQtl'lCitl disposition to the holes in the squaring discs, the disposition of the holes will be readily understood from an insp ction of the squaring disc.

The several squaring discs are made of any suitable material, though I prefer to make them from number sixteen or eighteen gage galvanized or tinned sheet metal and I prefer to make the pegs from galvanized or tinned wire.

By referring to Figs. 3 and at it will be seen that the circular rows of openings 9, 9 and 9 each comprise fourteen openings and that the circular rows of openings 10, 10 and 10", each comprise fifteen openings. As before stated, the fourteen hole structure is utilized in the winding of basket weave coils and in carrying out this object, the handle 7, which is secured to the inside squaring disc 11, by means of a. screw 12, is passed through the opening 6 to cause the pper ends of the pegs 8 to project through the openings of the particular row that it is intended to employ, according to the diameter of the coil to be formed. The insidesquaring disc is positioned adjacent. the outer or upper ends of the pegs. Then, starting at the pointer Z, seeFig. 3, a loop is thrown over one of the pegs andthen the wire is woven about the remaining pegs, said wire being carried first under or inside two of the pegs, then over or outside one of the pegs, then under two of the pegs, over one of the pegs, etc., around the circle. After having woven several turns of the wire in this manner, the outside squaring disc, having fourteen holes therein, positioned like the holes of the disc of Fig. 3 and mounted upon one end of the handle 13, is passed downwardly over the pegs to bear upon the woven strands of wire and to force them into snug engagement with each other and to force the wire and the inside squaring disc, downwardly, far enough to permit additional turns of wire to be woven into place. By referring to Fig. 5 it will be seen that the holes of the outside squaring discs 11, 1-1 are considerably larger in diameter than the holes of the inside squaring discs. The holes of the inside squaring discs fit the pegs fairly snugly, while the holes of the outside squaring discs are enough larger than the holes of the inside squaring discs to rende' it possible to shove the outside squaring discs downwardly without causing any binding whatever upon the pegs. After a sufficient quantity of wire has been wound upon the pegs in the manner stated, to constitute the desired height of the coil, the coil is tied in the usual and well known way and is then ejected from the pegs by thrusting upwardly upon the handle 7.

The method of forming a diamond weave coil will very readily be apparent. from the foregoing description, the operation being the same except that in the winding, the wire is carried over one peg, under the next peg, over the next peg, under the next peg, etc. The mounting of the two outside squaring discs upon the common handle 13, is a matter of convenience only. They might just as well be on separate handles. It. will be understood that the complete apparatus comprises four discs, viZ., two inside squar ing discs 11, 11 and two outside squaring discs 14, 1 1, one inside squaring disc has fourteen holes in it, the other has fifteen. One outside squaring disc has fourteen holes corresponding in position to the holes in its companion inside disc and the other outside squaring disc has fifteen holes in it corresponding in location to the holes of its companion inside disc, the only difference being that the holes in the outside squaring discs are somewhat larger than the holes in the inside squaring discs as hereinbefore set forth.

From the foregoing description it will be seen thatsimple and efficient means are herein provided for accomplishing the object set forth. However, it is to be understood that the invention is not limited to the precise construction set forth but that it includes within its purview whatever changes fairly come within either the terms or the spirit of the appended claims.

Having described my invention, what I claim is:

1. A device of the character described comprising a supporting base, a plurality of pegs extending therefrom, an inside squaring disc having a plurality of openings formed therethrough for the passage of said pegs, a freely movable, manually operable handle by which the inside squaring disc. is carried, said base having an opening formed therethrough for the passage of said handle.

2. A structure as recited in claim 1 in combination with an outside squaring disc adapted to lit upon said pegs and having openings corresponding with the openings in said inside squaring disc but of materially larger diameter.

3. The combination with a supporting base having a central opening formed there through and a plurality of circular rows of openings arranged therearound, the openings in the circular rows corresponding in number, pegs adapted to lit within said openings, an inside squaring disc adapted to lit upon said pegs and a freely movable, manually operable handle by which the inside squaring disc is carried, said handle being adapted to slide through the central opening of the b: se.

1-. The combination with a base having two groups of openings formed therein, each group comprising a central opening and a plurality of circular rows of openings, the openings in one group being of an even number and the openings of the other group being of an uneven number, pegs adapted to lit within said openings, inside squaring discs having openings corresponding in number and location to the openings of the base and outside squaring discs having openings corresponding in number and location to the openings of the base and freely movable, manually operable handles by which the inside squaring discs are carried.

A structure as recited in claim l wherein the inside squaring discs are providedv with handles adapted to pass through the central openings of the group and the outside squaring discs are mounted upon a common handle.

6. The combination with a supporting base having a central openings formed therethrough and a plurality of circular rows of openings concentrically arranged therearound, the openings in the circular rows corresponding in number, pegs adapted to fit within said openings, an inside squaring disc adapted to fit upon said pegs and a stick like handle freely slidable through the central opening of the base under manual manipulation, said handle having the inside squaring disc mounted upon its end.

In testimony whereof I ZilllX my signature.

JAMES HENRY THOMPSON. 

